JPS Conf. Proc. 18, 011038 (2017) [6 pages]
Proceedings of the 12th International Conference on Low Energy Antiproton Physics (LEAP2016)
The Development of the Antihydrogen Beam Detector: Toward the Three Dimensional Tracking with a BGO Crystal and a Hodoscope
1Department of Applied Physics, Tokyo University of Agriculture and Technology, Koganei, Tokyo 184-8588, Japan
2Atomic Physics Research Unit, RIKEN, Wako, Saitama 351-0198, Japan
3Graduate School of Arts and Sciences, The University of Tokyo, Meguro, Tokyo 153-8902, Japan
4Stefan Meyer Institute for Subatomic Physics, Boltzmanngasse 3,1090 Vienna, Austria
5CERN, 1211 Geneva 23, Switzerland
6Graduate School of Advanced Sciences of Matter, Hiroshima University, Higashihiroshima, Hiroshima 739-8530, Japan
7Dipartimento di Ingegneria dell’Informazione, Università di Brescia & Istituto Nazionale di Fisica Nucleare, Gruppo Collegato di Brescia, 25133 Brescia, Italy
Received June 15, 2016

We developed an antihydrogen beam detector for the microwave spectroscopy of the antihydrogen hyperfine splitting. The detector consists of a position sensitive BGO calorimeter and a hodoscope. We report test experiments for the position sensitive readout from a non-segmented BGO crystal.

©2017 The Physical Society of Japan


  • 1) G. B.Andresen et al., Nature 468, 673 (2010). 10.1038/nature09610 Google Scholar
  • 2) G.Gabrielse et al., Phys. Rev. Lett. 108, 113002 (2012). 10.1103/PhysRevLett.108.113002 Google Scholar
  • 3) Y.Yamazaki and S.Ulmer, Ann. Phys. 525, 493 (2013). 10.1002/andp.201300060 Google Scholar
  • 4) B.Juhász and E.Widmann, Hyperfine Interactions 193, 305 (2009). 10.1007/s10751-009-0016-7 Google Scholar
  • 5) N.Kuroda et al., Nat. Commun. 5, 3089 (2014). 10.1038/ncomms4089 Google Scholar
  • 6) Y.Nagata, N.Kuroda et al., Nucl. Instrum. Methods Phys. Res., Sect. A 840, 153 (2016). 10.1016/j.nima.2016.10.019 Google Scholar
  • 7) C.Sauerzopf et al., Nucl. Instrum. Methods Phys. Res., Sect. A 819, 163 (2016). 10.1016/j.nima.2016.02.098 Google Scholar
  • 8) C.Sauerzopf et al., Nucl. Instrum. Methods Phys. Res., Sect. A 845, 579 (2017). 10.1016/j.nima.2016.06.023 Google Scholar